Sometimes it happens to my clients when they copy/paste their email into space. In this way, by trying personally, I saw that you create an empty (unwanted) space on the left of the first letter. In your case, before the "a". Does this problem always happen to you, even if you write manually the email?
wedding and portrait photographer in italy | facebook | instagram
I tried...in this case try to contact the support.
We identified an issue with gallery downloads and have been working to fix it. They should be fixed shortly. You can check https://status.smugmug.com to keep updated